Hydrespirator



Aug. 3, 1937. L. PoLlNlAK i y 2,088,720

I HYDRESPIRATOR Filed Mann 4, 1937 2 sheets-sheet 1 L. FOLINIAK- HYDRESPIRATOR Aug. 3, 1937.

Filed March 4, 1937 2 Sheets-Sheet 2 Patented ug'. 3, 1937 lTED STATS rar oFFlcE 5 Claims.

This invention aims to provide a simple but efficient means for purifying the air of dust, fumes and foreign matter which, if drawn into the human lungs, produces discomfort or disease.

5 The invention aims to provide novel means for leading the air downwardly through a body of water, before the air is breathed, novel means being provided for .exhausting the air which has passed through the lungs of the operator. An-

lo other object of the invention is to improve the means whereby air is admitted into the water or other liquid, to improve the means whereby the air which has been breathed is exhausted, and to improve the conduit whereby the air moves il; back and forth, between the tank and the mouth of the wearer.

It is within the province of the disclosure to improve generally and-to enhance the utility of devices of that type to which the present in- 0 vention appertains.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details-of construction ,l5 hereinafter described and claimed, it vbeing understood that changes in the precise embodiment of the invention herein disclosed, may be made Within the scope of what is claimed, without departing from the spirit of the invention.

3J In the accompanying drawings:

Fig. l shows in perspective, a device constructed in accordance with the invention, mounted on the body of a wearer;

Fig. 2 is an elevation of the conduit and the .5 mouth piece, parts being broken away and parts being shown in section;

3 is a section on the line 3-3 of Fig. 2;

Fig. 4 is a longitudinal section of the tank and parts which support it on the body of the user;

,5) Fig. 5 is a section on the line 5-5 of Fig. 4;

If desired, the device may include a pouch or carrier I, the rear wall of which is supplied with an upstanding tab 2 having eyes 3, through'whlch passes a belt 4, adapted to hold the mechanism hereinafter described on the chest of the wearer, as shown in Fig. l: altho-ugh some support different from the pouch may be resorted to, and it is by no means necessary that the pouch be located inthe precise position depicted in Fig. 1

50 of the drawings.

.An elongated, round-ended tank 5 is mounted removably in the pouch I and is adapted to contain a quantity of water or other liquid, indicated at i9. The liquid Ill does not completely 55 fill the tank 5.

(Cl. 12S-146) Adjacent to one end, the tank 5 is provided with a first nipple 5. A yieldable washer 'l rests on the top of the tank 5, within the nipple 6, and on top of the washer 'l is disposed an annular outstanding flange 8 at the upper end of a 5 substantial vertical air inlet tube 9, the air inlet tube extending downwardly through the top of the tank 5, into the liquid Il) in the tank,. as shown in Fig. 4. The air inlet tube 9 is supplied in its bottom, and in its sides, below the level'of 10 the liquid ifi, with perforations II.

The numeral I2 marks a cap having side inlet openings ill, the cap includinga reduced neck I5 provided at its lower end with an annular, inwardly projecting flange I8. The neck I5 of the 15 cap i2 is threaded downwardly in the nipple 6, until the flange or foot I6 presses tightly against the outstanding ange 6 of the air inlet tube 9, the fiange 3, in turn, being pressed tightly against the washer l, and a water tight joint thus being4 9 effected.

The numeral Il designates a second nipple, provided at its lower end withan outstanding annular flange or foot 29, which is secured tothe top of the tank 5, the second nipple I 'I being 2 located intermediate the ends of the tank 5. The o upper wall of the second nipple I'I carries an upstanding, reduced neck I8. A compressible washer I9 is disposed about the neck I8 and rests on the upper wall of the nipple I1.

A ring 2B is threaded on the nipple II and includes an outstanding flange or foot 2|, at its lower edge, pressing on the washer I 9 and affording a tight joint. A hinge plate 22 is secured to the outer surface of the ring 20 and is pivotally connected at T23 with a hinge plate 24 extended across the upper end of the ring 20, the hinge plate 24 being enclosed in a casing 25 of rubber or other resilient material. It will be seen that the hinge plates 22 and 24, together with 40 the casing 25, constitute an outwardly opening and inwardly closing check valve of the ap type.

A cap 26 is threaded on the nipple I'I and is provid-ed at its lower end with an outstanding foot or flange 2l' which exerts pressure on a re- 45 silient washer 23, resting on the foot 29 of the nipple ll and surrounding the nipple, an air tight joint being afforded. The cap 26 is supplied near its upper end with side inlet perforations 3U. 0 I

A third nipple 3l is mounted on the top of the 5 tank 5, adjacent to that end of the tank which is remote from the air inlet tube 9. The lower :end of a iieXible tubular conduit 33 is threaded on the nipple 3i, as shown in Fig. 4. Intermediate 55 the nose of the wearer.

vthe level of the liquid I0. wardly through the nipple I1 and through the its ends, the conduit 33 has an enlargement 34 of bulb-like form, affording increased radiating surface and tending to condense the moistureA out of the air which is drawn upwardly through the conduit 33.

'I'he upper end of the conduit 33 is threaded on the curved neck 35 of a mouth piece 36, the neck and the mouth piece preferably being made of hard material. The mouth piece 36 is so shaped that it will fit closely about the mouth of the wearer, and in the upper edge of the mouth piece 36 there is a notch 31, adapted to receive The edge of the mouth piece 36 is shod with a soft facing 38 of rubber or the like, enabling the mouth piece to fit closely against the wearers face. Any suitable means may be supplied forholding the mouth piece 36 in place. For instance, the neck 35 may be surrounded by a yoke ring 39, engaging the mouth piece 36, as shown in Fig. 3, and a band or straps 140 may be connected to the yoke ring 39, the rband or vstraps passing around behind the wear- 'er.s.head, as shown in Fig. 1. Any equivalent for -thering v59 and the band or straps 48 may be provided.

zIn Vpractical operation, when the wearer draws the lower end of the tube 9. 'I'he air rises through the liquid I0, and as the air moves upwardly ,through the liquid, it is purged of impurities,

such 'asdust or the like, these impurities remaining in the liquid I0. 'I'he air moves upwardly through the conduit 33 and the mouth piece 36 and is taken into the wearers lungs. When the wearer inhales, the check valve shown at 22- 24-25 is closed by gravity, aided by suction. When the wearer exhales, the air is forced down- Wardly through the mouth piece 36 and through the tube 33, the air entering the tank 5 above The air passes upring 26, the flap valve 22-24-25 opening to f permitan exhaust of the air, the air leaving the .cap v'Miby way of the perforations 30.

The device is simple in construction, but it is ;so:made that it may be mounted readily on the body of a workman, the air which he breathes being washed clear of impurities, and the diseases which'result from breathing dust or other foreign matter being avoided. Practically the only part vof .the device which is subject to appreciable wear is the check valve 24-22-25, and this check valve may be renewed by threading the ring 20 .ofithe neck I8 of the nipple I'I and substituting a new ring and check valve.

Having thusv described the invention, what is claimed is:

, .1. In a device of the class described, a tank v.adapted to contain liquid, an air inlet tube connected to the upper portion of the tank and opening at its lower end within the liquid in the V tank, an outwardly opening check valve carried by the upper portion of the tank Vand located labove the liquid in the tank, a conduit connected at its'lower end with the tank, above the liquid in the tank, a mouth piece mounted on the upper end of the conduit, means for securing the mouth piece to the head of wearer, and means for carrying the tank on the body of a wearer.

2. In a device of the class described, a tank adapted to contain liquid, a nipple on the upper portion of the tank, a washer within the nipple and resting on the top of the tank, an air inlet tube opening at its lower end within the liquid in the tank and provided at its upper end with an annular outstanding flange resting on the washer, a cap having an air inlet, the cap being threaded into the nipple and bearing at its lower end against the flange of the inlet tube, to press said iiange against the washer and make a tight joint, an outwardly opening check valve carried by the upper portion of the tank and 1ocated above the liquid in the tank, a conduit connected at its lower end with the tank, above the liquid in the tank, a mouth piece mounted on the upper end of the conduit, means for securing the mouth piece to the head of a wearer, and means for carrying the tank on the body of a wearer.

3. In a device of the class described, a tank adapted to contain liquid, an air inlet tube connected to the upper portion of the tank and opening at its lower end within the liquid in the tank, a nipple mounted on the top of the tank and provided with an upper wall carrying g above the liquid in the tank, a mouth piece mounted on the upper end of the conduit, means for securing the mouth piece to the head of a wearer, and means for carrying the tank on the body of a wearer.

4. In a device of the class described, a tank adapted to contain liquid, an air inlet tube connected to the upper portion of the tank and opening at its lower end within the liquid in the tank, a nipple mounted on the upper portion of the tank and provided with an upper wall carrying a reduced neck, a ring threaded on the neck, an outwardly opening check valve carried by the ring, a cap threaded on the nipple and enclosing the neck and the check valve, the cap being provided with an air inlet opening, a conduit connected at its lower end with the tank, above the liquid in the tank, a mouth piece mounted on the upper end of the conduit, means for securing the mouth piece to the head of the wearer, and means for carrying the tank on. the body of a wearer.

5. In a device of the class described, a tank adapted to contain liquid, an air inlet tube connected to the upper portion of the tank and opening at its lower end within` the liquid in the tank, an outwardly opening check valve carried n 

